CN2387218Y

CN2387218Y - Auto-extending locking mechanism for spring bolt

Info

Publication number: CN2387218Y
Application number: CN 99228584
Authority: CN
Inventors: 徐至涵
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-06-08
Filing date: 1999-06-08
Publication date: 2000-07-12
Anticipated expiration: 2009-06-08

Abstract

The utility model relates to an auto-extending locking mechanism for a lock bolts, which is provided with a lock body, a lock bolt and a restoring spring, wherein, a locking piece and a locking spring are installed on the lock body or the lock bolt, and a telescopic driving bolt and the restoring spring are installed on the lock body. A movable head is hinged on the driving bolt which is provided with the restoring spring, and the front end of the driving bolt can extend out of the lock body. Automatic locking and convenient door opening and closing can be realized by adopting an anti-theft lock of the auto-extending locking mechanism for a lock bolts.

Description

Dead bolt stretches out locking mechanism automatically

The utility model relates to a kind of dead bolt and stretches out locking mechanism automatically.

Chang Yong theftproof lock in the market need revolve several circles with key when locking a door and big dead bolt is stretched out and locks.Chinese patent CN2297515Y discloses a kind of multidirectional automatic locking, it has done improvement to theftproof lock commonly used, propose a kind of dead bolt and stretched out locking mechanism automatically, when locking a door, big dead bolt can stretch out automatically under the effect of armature contact and lock, do not need to use key, but, its weak point is, when opening the door, contact for the second time and produce misoperation, need key be tightened lock core with hand with doorframe in order to prevent armature contact, open and just can loose one's grip till breaking away from doorframe up to door, the misoperation that produces otherwise armature contact contacts with doorframe for the second time can make big dead bolt stretch out and lock, and makes the big dead bolt of the door of having opened be in the state of stretching out, and need revolve a few circle keys again just can make big dead bolt indentation, so that close the door next time well, opened, closing the door makes troubles.

The purpose of this utility model provides a kind of can automatically locking, again the open and close door easily dead bolt stretch out locking mechanism automatically.

The technical scheme that realizes above-mentioned purpose is: a kind of dead bolt stretches out locking mechanism automatically, have lock body, dead bolt and back-moving spring thereof, also have a locking piece and lock spring and be contained on lock body or the dead bolt, telescopic driving tongue and back-moving spring thereof also are housed on the lock body, hinged on the driving tongue have movable head and back-moving spring be housed, and drive the extended lock body of front end of tongue.

After adopting said structure, equal on lock body, to be provided with one and can promote the pusher that locking piece can be stepped down to locking piece again, thereby constitute a dead bolt and stretch out locking mechanism automatically with lock body, locking piece and locking spring, dead bolt and back-moving spring thereof are common.At closing time, the driving tongue of pusher is withstood by doorframe, thereby promotes movable head, makes movable head promote locking piece and removes locking to dead bolt, and then dead bolt is stretched out automatically lock under action of reset spring.When opening the door, use key rotation lock core, make dead bolt indentation lock body and pin, at this moment by locking piece, movable head is positioned at the secure side of locking piece, door breaks away from the moment of doorframe, drives tongue and stretch out lock body under its action of reset spring, drives movable head and moves, because the direction of motion of movable head is the direction that makes locking piece locking, and movable head can overcome the active force of its back-moving spring and locking piece is stepped down, thereby neither influences the locking action of locking piece, can also return to original position easily.Therefore, after the utility model is used to lock, can automatically lock, the open and close door is convenient again.

The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model:

Fig. 1 is the structural representation of first kind of embodiment of the utility model;

Fig. 2 is the A-A sectional view of pusher shown in Figure 1;

Fig. 3 is that dead bolt shown in Figure 1 stretches out the structural representation of locking mechanism under the state of closing the door automatically;

Fig. 4 is that dead bolt shown in Figure 1 stretches out the locking mechanism status architecture schematic diagram of the moment before door is opened automatically;

Fig. 5 is the another kind of fit structure schematic diagram of dead bolt and locking piece;

Fig. 6 is the partial schematic diagram of the another kind of structure of pusher shown in Figure 1;

Fig. 7 is the vertical view of Fig. 6;

Fig. 8 is the A-A sectional view of Fig. 7;

Fig. 9 is the structural representation of second kind of embodiment of the utility model;

Figure 10 is that dead bolt shown in Figure 9 stretches out the structural representation of locking mechanism under the state of closing the door automatically;

Figure 11 is that dead bolt shown in Figure 9 stretches out the locking mechanism status architecture schematic diagram of the moment before opening the door automatically.

As shown in Figure 1, the utility model dead bolt stretches out locking mechanism automatically and has lock body 1, dead bolt 3 and back-moving spring 15 thereof, also have a locking piece 7 and lock spring 6 and be contained on lock body 1 or the dead bolt 3, telescopic driving tongue 13 and back-moving spring 12 thereof also are housed on the lock body 1, hinged on the driving tongue 13 have movable head 8 and back-moving spring 11 be housed, and drive the extended lock body 1 of front end of tongue 13.

As shown in Figure 1, 2, have hinging supporting shaft 9 and confined planes 10 on the driving tongue 13, movable head 8 is hinged with driving tongue 13 by hinging supporting shaft 9, and an end can be resisted against on the confined planes 10.

In first Application Example shown in Fig. 1～4, theftproof lock stretches out the locking mechanism except having dead bolt automatically, also has lock core 2, between lock core 2 and the dead bolt 3 connecting rod 16 is housed, lock body 1 is provided with leads position axle 4, have and lead axle 4 sliding position guiding grooves 5 of joining in position on the dead bolt 3, locking piece 7 is hinged on lock body 1, one end is provided with the locking spring 6 that is installed on the lock body 1, the other end has grab 7-2 and inserts in the lock slots 14 of dead bolt 3, certainly the other end of locking piece 7 also can be provided with draw-in groove 7-1 and also can fasten with the axis 17 that is arranged on the dead bolt 3 as shown in Figure 5 in its end, and locking spring 6 also can be installed in an end of the close lock slots 14 of locking piece 7.Shown in Fig. 1～4, when locking a door, people only need door is pulled on, drive tongue 13 indentation lock body 1 under the compressing of doorframe, thereby promote movable head 8, movable head 8 one ends prop up confined planes 10, other end promotion locking piece 7 overcomes the spring force of back-moving spring 6 and rotates, thereby make grab 7-2 on the locking piece 7 break away from draw-in groove 14 on the dead bolt 3, dead bolt 3 stretches out lock body 1 under the effect of its back-moving spring 15 finishes and automatically locks, and need not to lock by key.When opening the door, earlier with key rotary locking cylinder 2, under the pulling of connecting rod 16, make dead bolt 3 overcome the active force of its back-moving spring 15 and indentation lock body 1, at this moment, hinged movable head 8 has been in secure side such as Fig. 4 of locking piece 7 on the driving tongue 13, meanwhile locking piece 7 is under the effect of its locking spring 6, the grab 7-2 of one end inserts in the lock slots 14 of dead bolt 3, dead bolt 3 is automatically locked, after door breaks away from doorframe, thereby driving tongue 13 leaves doorframe and stretch out lock body 1 under the effect of its back-moving spring 12, drives tongue 13 pulling movable heads 8 toward moving left, and movable head 8 is stepped down until returning to original position around hinging supporting shaft 9 rotations and to locking piece 7 under the effect of its back-moving spring 11, side is prepared in the work that is locking piece 7 shown in Figure 1, get ready for close the door next time, at this moment, door is thoroughly opened.With hand key is turned lock core 2 rotations in the above-mentioned process of opening the door, and after making dead bolt 3 indentation lock bodies 1, be no longer necessary for and prevent to drive tongue 13 generation misoperations and the hand-tight make-up lock core, it is very convenient to open the door and close the door.

As Fig. 6,7, shown in 8, drive on the tongue 13 and also can have mounting groove 18, movable head 8 is hinged in the mounting groove 18 that drives tongue 13 by hinging supporting shaft 9, and an end can be resisted against on the confined planes 10 of mounting groove 18, like this, after being applied on the theftproof lock shown in Figure 1, when at closing time, when driving tongue 13 promotion movable heads 8 past moving right, one end of movable head 8 is resisted against on the confined planes 10 of mounting groove 18, and the other end promotes locking piece 7 rotations, lock slots 14 or axis 17 that locking piece 7 is broken away from the dead bolt 3, thereby dead bolt 3 is finished under the effect of its back-moving spring 15 to automatically lock, when opening the door, its course of work is with aforementioned the same, and movable head 8 also can be stepped down to locking piece 7, so adopt this structure, open, it is all very convenient to close the door.

Fig. 9,10,11 is depicted as second kind of embodiment that the utility model dead bolt stretches out locking mechanism automatically, this dead bolt stretches out locking mechanism automatically and comprises lock body 1, dead bolt 3 and back-moving spring 15 thereof equally, a telescopic driving tongue 13 and back-moving spring 12 thereof also are housed on the lock body 1, drive the hinged extended lock body 1 of front end that movable head 8 is arranged and drive tongue 13 on the tongue 13, the structure of movable head 8 is identical with the description of above-mentioned two kinds of structures that Fig. 1,6 is done, and can both use.And be with the difference of above-mentioned first embodiment: a locking piece 7 and locking spring 6 thereof are contained on the dead bolt 3, rather than are contained on the lock body 1.

In second embodiment shown in Fig. 9,10,11, theftproof lock has dead bolt and stretches out locking mechanism and lock core 2 automatically, lock body 1 is provided with leads position axle 4, leading position axle 4 is fitted together with lock core 2 and has a transmission arm 19, has slide-bar 20 on the transmission arm 19, have and lead axle 4 sliding position guiding grooves 5 of joining in position on the dead bolt 3, and slide the oblique chutes 21 of joining with slide-bar 20, slide-bar 18 stretches out dead bolt 3 surfaces.Locking piece 7 is hinged on dead bolt 1, and an end has draw-in groove 7-1, and draw-in groove 7-1 can engage with the slide-bar 20 on the transmission arm 19 of leading position axle 4, locks spring 6 and is contained on the dead bolt 3 and is pressed on the locking piece 7.Movable head 8 can contact with the upper end of locking piece 7 or separate.

As Fig. 9,10, shown in 11, when locking a door, people only need door is pulled on, drive tongue 13 indentation lock body 1 under the compressing of doorframe, thereby promote movable head 8, movable head 8 one ends are resisted against other end promotion locking piece 7 on the confined planes 10 that drives tongue, make the draw-in groove 7-1 of locking piece 7 break away from slide-bar 20 on the transmission arm 19, at this moment, the transmission arm 19 of leading position axle 4 rotates around leading position axle 4 under the effect of back-moving spring 15, and the slide-bar 20 that drives on the transmission arm 19 slides into state as shown in figure 10 along the oblique chute 21 on the dead bolt 3, and dead bolt 3 stretches out automatically, finish automatically locking, need not to lock with key.When opening the door, with key rotary locking cylinder 2, lock core 2 is stirred lead position axle 4 and driven transmission arm 19 and be rotated counterclockwise around leading position axle 4, drive slide-bar 20 and slide into position as shown in figure 11 along oblique chute 21, locking piece 7 locks under the effect of its locking spring 6, and the draw-in groove 7-1 on 20 locked 7 of the slide-bars blocks, at this moment, because Men Shangwei breaks away from doorframe, movable head 8 can not produce the action that mistake pushes away locking piece 7 still in the secure side of locking piece 7.After treating that door is opened, drive tongue 13 and under the effect of its back-moving spring 12, stretch out lock body 1, and drive movable head 8 toward moving left, movable head 8 is stepped down to locking piece 7 under the effect of its back-moving spring 11 automatically, and returns to position shown in Figure 9 again, the preparation side of promptly working, thereby finished the overall process of opening the door, adopted this structure, the open and close door is also very convenient.

Claims

1, a kind of dead bolt stretches out locking mechanism automatically, has lock body (1), dead bolt (3) and back-moving spring (15) thereof, also has a locking piece (7) and lock spring (6) to be contained on lock body (1) or the dead bolt (3), it is characterized in that:

Telescopic driving tongue (13) and back-moving spring (12) thereof are housed on a, the lock body (1),

Hinged on b, the driving tongue (13) have movable head (8) and back-moving spring (11) be housed, and drive the extended lock body of front end (1) of tongue (13).

2, dead bolt according to claim 1 stretches out locking mechanism automatically, it is characterized in that: have hinging supporting shaft (9) and confined planes (10) on the driving tongue (13), movable head (8) is hinged with driving tongue (13) by hinging supporting shaft (9), and an end can be resisted against on the confined planes (10).

3, dead bolt according to claim 1 stretches out locking mechanism automatically, it is characterized in that: have mounting groove (18) on the driving tongue (13), movable head (8) is hinged in the mounting groove (18) that drives tongue (13) by hinging supporting shaft (9), and an end can be resisted against on the confined planes (10) of mounting groove (18).

4, stretch out locking mechanism automatically according to claim 1 or 2 or 3 described dead bolts, it is characterized in that: locking piece (7) is hinged on dead bolt (3), and an end has draw-in groove (7-1), the slide-bar (20) of leading on the transmission arm (19) of axle (4) stretches out dead bolt (3) surface, the draw-in groove (7-1) of locking piece (7) can engage with slide-bar (20), locking spring (6) is contained on the dead bolt (3), and is pressed on the locking piece (7).